[ Perfect Modals ]
I think they __ got lost – surely they’d be here by now!
A. can have
B. should have
C. must have

Random Topics:
Linkers and ConjunctionsConnectivesGrammar : Must (Necessity)Modals for DeductionInfinitivesTime ConjunctionsPast Progressive TenseAuxiliary ModalGerunds and ModalsVerbal PhrasesOther quiz:
Vocabulary and Grammar › ViewHer house is the _____ from school. I wonder how long it takes her to go to school every day.
A. farest
B. furthest
C. further
D. farthest
Grammar › View
Isaac and his neighbours ________ after school every day to play football.
A. meets
B. meet
C. is meeting
D. has met
Tenses › ViewNowadays, people ……………….. more hours than before.
A. works
B. are working
C. have been working
Modal Verbs › View
All female students .. wear veil to school
A. don’t have to
B. doesn’t have to
C. have to
D. shouldn’t